Product category:
Frequency Control Components
News Release from: Epcos | Subject: B69812N1577B302 and B69812N1577D302
Edited by the Electronicstalk Editorial
Team on 16 November 2004
GPS filters locate handset duties
The B69812N1577B302 and B69812N1577D302 GPS filters are specially designed for navigation systems in cars, ships, handhelds or mobile phones.
The B69812N1577B302 and B69812N1577D302 GPS filters are specially designed for navigation systems in cars, ships, handhelds or mobile phones They differ from previous filters by requiring 35% less space and benefit from a signal-to-noise ratio of up to 50dB for the various mobile radio frequencies
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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The UMTS duplexer B69969N2047A760 has been developed for the latest 3G mobile handsets.
The duplexer takes 25% less space than its predecessor and has a reduced typical TX insertion loss of 1.1dB.
To simplify signal routing and thus board layout, the antenna and I/O pads are located on opposite sides.
These improvements enable customers to go further in miniaturising their products while improving performance.
The UMTS duplexers and the new GPS filters feature very good power compatibility (30dBm or better) and high dielectric strength thanks to their ceramic properties.
Based on LTCC, Epcos' multilayer ceramic filters feature a completely new filter technology.
Filter types B6989M2447C183 (balanced 50:50), B69893M2457B101 (balanced 50:100) and B69893K2457A101 (unbalanced 50:50) have been developed for IEEE802.11b/g and for Bluetooth applications.
Type B69883M5427B110 (balanced 50:100) is suitable for applications to IEEE802.11a.
These latest components based on LTCC have the advantage of being smaller than conventional ceramic filters and offer high economies of scale.
The smallest filters currently made have a footprint of 2 x 1.5mm.
The balanced terminals can replace the discrete baluns which were used until now.
This new technology allows customers to benefit from significant space and cost savings combined with low temperature drift and high power compatibility due to the ceramic properties of the components.
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